I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
qualities quaaludes quilts colitis galiots kilties galettes gallates quillets calottes culottes galateas galliots cults cultus glides guilts culets glutes gaults cullets gluteus glottis gallets gullets galoots callets collates galletas galloots collides clots colts gleds glitz gluts kelts kilts
jollities polities qualities realities dualities nullities phyllites ileitis ciliates pelites lealties blites illites palliates elites kilties iolites platies shelties velleities salties zeolites halites laities mullites foliates colitis velites flites realties oolites filiates zloties fealties tillites hyalites lits